Biotechnology Bulletin ›› 2024, Vol. 40 ›› Issue (11): 78-87.doi: 10.13560/j.cnki.biotech.bull.1985.2024-0985

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Study on the Optimization of Ultrasonic-assisted Extraction Process of Hericium coralloides (Scop.) Pers. Polysaccharides and Its Anti-colorectal Cancer Activity

YU Jin-qi1(), WU Ke-yi1, CHEN Zheng-rui1, WANG Jing-han1, ZHANG Xin2,3(), WANG Chun-yue1,2()   

  1. 1. College of Plant Protection, Jilin Agricultural University, Changchun 130118
    2. Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118
    3. College of Horticultural, Shenyang Agricultural University, Shenyang 110866
  • Received:2024-10-08 Online:2024-11-26 Published:2024-12-19
  • Contact: ZHANG Xin, WANG Chun-yue E-mail:yujinqi@mails.jlau.edu.cn;2021200116@stu.syau.edu.cn;wangchunyue@jlau.edu.cn

Abstract:

【Objective】 Hericium coralloides(Scop.)Pers. is a medicinal and edible fungus. This study focused on optimizing the ultrasonic extraction process of its polysaccharides(HCP)and exploring the in vitro anti-colorectal cancer activity and underlying mechanisms of HCP. 【Method】 Single-factor experiments combined with response surface methodology(RSM)S was used to optimize the ultrasonic extraction conditions of HCP. MTT assays and Western blot analyses were applied to investigate the anti-colorectal cancer activity and mechanisms of HCP. 【Result】 The optimal ultrasonic extraction conditions for H. coralloides polysaccharides were as follows: extraction power of 417 W, liquid-to-material ratio of 62 mL/g, and extraction time of 52.5 min. The predicted extraction yield of polysaccharides was 19.61%, with an actual yield of(19.58±0.05)%. HCP inhibited the growth of SW480 cells by reducing the phosphorylation levels of IKK, IκBα, and NF-κB, thereby decreasing the secretion of the pro-inflammatory factor IL-6. The half-maximal inhibitory concentration(IC50)was 1.246 mg/mL. 【Conclusion】 The optimal ultrasonic-assisted extraction rate of H. coralloides polysaccharides was 19.58%. HCP suppressed the secretion of pro-inflammatory cytokines by inhibiting the NF-κB signaling pathway, thus inhibiting the growth of SW480 cells. These findings suggest that HCP has potential therapeutic effects on colorectal cancer.

Key words: Hericium coralloides, anti-colorectal cancer activity, ultrasonic extraction, response surface optimization, polysaccharides, NF-κB signaling pathway